lorid

commit e0eeaa3985a7d6eb15968a4969ac27a66e38ccb2
parent 6536b38812bb414f1304e00934feede28f0a922e
Author: nibo <nibo@relim.de>
Date:   Wed, 22 Jan 2025 19:55:28 +0100

Load font file only if it contains one font

If a font file has multiple fonts in it and one of them
matched in lorid's search for a specified font then
pdfio doesn't extract the matched font but uses probably
the first.

I don't know what pdfio exactly does I only saw wrong
fonts being used after selecting a font file with
multiple fonts.

Diffstat:
M
out_pdf.c
 | 
20
+++++++++++++++++++-

1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/out_pdf.c b/out_pdf.c
@@ -230,6 +230,21 @@ fonts_get_all(struct ChoSong **songs, struct Config *config)
 	return fonts;
 }
 
+static int
+fontpath_count_fonts(FcChar8 *path)
+{
+	int count;
+	FcFontSet *set;
+	set = FcFontSetCreate();
+	if (!FcFileScan(set, NULL, NULL, NULL, path, false)) {
+		LOG_DEBUG("fontpath_count_fonts failed.");
+		return -1;
+	}
+	count = set->nfont;
+	FcFontSetDestroy(set);
+	return count;
+}
+
 static char *
 fontpath_find(struct Font *font, enum FontType font_type)
 {
@@ -289,7 +304,10 @@ fontpath_find(struct Font *font, enum FontType font_type)
 	FcChar8 *file;
 	for (int i=0; i<set->nfont; i++) {
 		if (FcPatternGetString(set->fonts[i], FC_FILE, 0, &file) == FcResultMatch) {
-			if (!file_extension_equals((const char *)file, "ttc")) {
+			if (
+				!file_extension_equals((const char *)file, "ttc") &&
+				fontpath_count_fonts(file) == 1
+			) {
 				filepath = strdup((const char *)file);
 				break;
 			}